JACK'S LETTEES TO WALLICH, 1819-1821. 267 



Penang plant in his letters (p. 165) as well as being beyond 

 doubt the species with hirsute leaves found in Singapore. 



Curculigo sp. Three species are mentioned in Jack's 

 letters (p. 2oo) as having been found by him, but he give no 

 value. 



Pancratium amboinense, Jack (letters p. 171) cannot 

 be precisely identified. 



TACCACEAE. 



Tacca cristata, Jack, was found in Penang and is men- 

 tioned in his letters as Tacca Rafflesia (pp. 161. 165, and 1T1) ; 

 and later it was got in Singapore (letters p. 178). He changed 

 the name before publishing his description so that it appears in 

 the Malay. Misc. i. ^o. 5, p. 3 as Tacca cristata. 



Tacca sp. Jack mentions in his letters (p. 228) the ob- 

 taining of another species in Sumatra. 



DIOSCOREACEAE. 



Dioscorea pyrifolia, Kunth, was got by Jack in Singa- 

 pore and distributed by Wallieh as D. glabra, Xo. 5105 of his 

 Catalogue. 



LILIACEAE. 



Dracaena Jackiana, Wall., was collected by Jack m 

 Penang and distributed by Wallieh as Xo. 5115 of his Cata- 

 logue. 



Cordyline terminalis, Kunth, was collected by Jack in 

 Penang. and was distributed by Wallieh as Xo. 5140 of his 

 Catalogue. 



XYRIDACEAE. 



Xyris indica, Linn., is mentioned as a Singapore plant 

 by Jack (letters p. 178) ; but as X. indica is not known to 

 occur in Singapore whereas the very similar X. (incept, Lamk.. 

 does, it seems probably that Jack had the latter. 



FLAGELLARIACEAE. 



Susum anthelminticum, Blume, was described by Jack 

 under the name of Veratrum? malai/anum in Malay. Misc. 

 i. Xo. 5, p. 25. He had got in Penang. 



COMMELYNACEAE. 



Tradescantia spp. Jack in his letters (p. 235) says that 

 he had obtained three species. 



Floscopa scandens, Lour., was collected by Jack in 

 Penang and distributed by Wallieh under his Catalogue 

 number 5204. 



R. A. Soc, No. 73, 1916. 



